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Dear friends,
I am trying to communicate with a TI AMC7834 controller chip via SPI, using a NP2 with ver 4.3.1.0 firmware.
It's not clear to me what sequence of commands the Netduino implementation of SPOT.SPI actually needs. Being a rookie with SPI, I have searched for example code online but I'm still confused.
Is the following sufficient for setting a register?
byte[] WriteBuf = new byte[] { (byte)Register_ID, 0x10 }; // writes 0x10 to RegisterID
MySPI.Write(WriteBuf);
Do I need to manipulate the CS pin myself or is this built it?
Is this sufficient for reading two bytes from a register?
byte[] tx_data = new byte[2];
byte[] rx_data = new byte[2];
tx_data[0] = (byte)Register_ID;
tx_data[1] = 0x00 ; // Unsure whether this is needed
MySPI.WriteRead(tx_data, rx_data); // read two bytes of data into rx_data
Could someone please point me to an example of reading and writing to a device with registers?
Thank you -
